美国泛美高电压超声波方波脉冲发射接收器panametrics 5077/5077PR与10MHz或10MHz以下的探头一起使用进行检测时,会发挥出其明显的优势。
美国泛美高电压超声波方波脉冲发射接收器panametrics 5077/5077PR特色概述:
宽频带方波脉冲,脉冲宽度可选可调(预置值±25%),脉冲电压、脉冲重复频率可(晶振控制)可选,通过将方波脉冲宽度调谐为探头共振频率,宽带性能便得以保证,因此方波脉冲可以极大地提高灵敏度;
探头频率范围0.1~20MHz;
35MHz宽频带接收器;
可选10MHz低通滤波器(高频噪声抑制)与1MHz高通滤波器(快速恢复时间和低频噪声抑制);
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美国泛美高电压超声波方波脉冲发射接收器panametrics 5077/5077PR脉冲发生器:
脉冲类型(主脉冲):负方波,持续时间和振幅可调;
大脉冲振幅:400V(无外部负载);
脉冲宽度:10个预置固定宽度对应下述换能器频率范围-15~20MHz,10MHz,7.5MHz,5.0~6.0MHz,3.5~4.0MHz,2~2.25MHz,1.0MHz,0.5MHz,0.25MHz和0.1MHz,每个宽度可细调少±25%;
重复速率(内部和外部触发):100/200/500/1000/2000/5000Hz用于所有换能器,但对0.5MHz换能器大限于2000Hz,对0.25MHz换能器为1000Hz,对0.1MHz换能器为500Hz;
脉冲上升下降时间(小脉冲电压和空载):大20ns(10%~90%),典型10ns;脉冲电压(空载):100/200/300和400V;
同步信号输出:3.0V(50Ω),脉冲持续时间0.5~10μs,可在2.4V下驱动26个标准TTL负载;
同步输出主脉冲前沿30~60ns;
外部触发:正沿,小2.4V,小脉冲持续时间50ns,输入通过1000pf和10kΩAC耦合,外部触发器与主脉冲前沿之间的内部延迟约2μs;
模式:脉冲回波或穿透法
美国泛美高电压超声波方波脉冲发射接收器panametrics 5077/5077PR接收器:
输入阻抗:脉冲回波模式,回波<±5V,对于2~20MHz换能器为50Ω,对于0.1~1.0MHz换能器为500Ω,穿透模式500Ω;
大输入功率(穿透模式):大平均功率500mW;
相位(射频输出):反相或不反相(内部开关选择);
衰减器范围:0~49dB,1dB步进;
电压增益(50Ω):0~59dB,1dB步进;
带宽:35MHz(-3dB),50Ω;
噪声:典型30μVrms(带宽35MHz);
高通滤波器:1KHz(out)或1MHz(选择);
低通滤波器:35MHz(全带宽)或10MHz(选择);
绝缘(穿透模式):10MHz,小53dB(典型62dB);
大输出电压:±1.0Vpk(阻尼=500Ω);
输出阻抗:50Ω
美国泛美高电压超声波方波脉冲发射接收器panametrics 5077/5077PR电源要求:100/120/220/240VAC,50~60Hz,10W;
保险丝:1/8A(100/120VAC),1/16A(220/240VAC);
尺寸:178x89x231mm;
重量:2.3kg;
工作温度:0~50℃;
美国泛美高电压超声波方波脉冲发射接收器panametrics 5077/5077PR英文介绍:
Model 5077PR: 35
MHz (-3 dB) ultrasonic bandwidth and square wave pulser-receiver is ideal for
maximizing response in scattering materials. The square wave pulser is
particularly advantageous when testing with transducers of 10 MHz or lower, as
adjustable pulse width optimizes pulse energy, resulting in superior signal-to-noise
characteristic.
美国泛美高电压超声波方波脉冲发射接收器panametrics 5077/5077PR英文参数:
Specifications
PULSER
|
脉冲发生器接收器5077PR
|
Pulse Type
(main bang):
|
Negative Square
Wave
|
Rise Time
(10% to 90%):
|
Typically <10
ns, 20 ns max (rise and fall time)
|
Available Pulse
Voltage:
(no load)
|
Select -400 V,
-300 V, -200 V, -100 V
|
Available Pulse
Energy:
|
N/A
|
Damping:
|
N/A
|
Pulse Width:
|
10 preset fixed
widths: 15-20,10, 7.5, 5.0-6.0, 3.5-4.0, 2-2.25, 1.0, 0.5, 0.25, 0.1
MHz. Variable +/-25% fine vernier tuning for each width.
|
Mode:
|
|
Isolation (53 dB
min):
|
Typically 62 dB
at 10 MHz
|
Pulse Repetition
Rate:
(Internal)
|
100, 200, 500,
1000, 2000, 5000 Hz, except that maximum PRF is limited to: 2000 Hz FOR 0.5
MHz tranducers, 1000 MHz for 0.25 MHz transducers, and 50 Hz for 0.1 MHz
transducers.
|
Pulse Repetition
Rate:
|
0-5 kHz (observe
limitations of PRF versus pulse width)
|
Synch Output
Pulse:
|
|
External Trigger
Input:
(in series with 10 Kohms)
|
2.4 V into 1000
PF 50 ns minimum pulse width
|
RECEIVER
|
5077PR
|
Maximum
Bandwidth:
(-3 dB, RL=50 ohms)
|
1 kHz - 35 MHz
|
Voltage Gain:
|
0-59, 1 dB steps
(RL=50 ohms)
|
Phase:
|
|
Attenuator Range:
|
0-49, 1 dB steps
(RL=50 ohms)
|
High Pass Filter:
|
1 kHz (out) or 1
MHz
|
Low Pass Filter:
|
35 MHz (out) or
10 MHz
|
Noise:
|
70 µV pk-pk
typical, referred to input, BW=35 MHz
|
Max Signal
Output:
|
|
Input
Resistance:
(Thru-Transmission)
|
500 ohms
|
Output Impedance:
|
50 ohms
|
Maximum Input
Power:
|
500 mW
|
UNIT
|
5072PR,5073PR,5077PR
|
Input/Output:
|
External Trigger
In, Sync Out, RF Out, T/R and R: All BNC female connectors
|
Power Main
Requirements:
|
100/120/220/240
VAC, 50/60 Hz
|
Operating
Temperature:
|
0-50°C
|
Size and Weight:
|
7" W x
3.5" H x 9.1" D (178 mm x 89 mm x 232 mm); 5 lbs (2.3 kg)
|
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